They live on your skin, up your nose, in your gut -- enough bacteria, fungi and other microbes that collected together could weigh, amazingly, a few pounds.
Lauran Neergaard, AP Medical Writer, Boston Globe
Wed, 06/13/2012 - 1:19pm
They live on your skin, up your nose, in your gut -- enough bacteria, fungi and other microbes that collected together could weigh, amazingly, a few pounds.